Details

Census.gov has data on a wide variety of national statistics including all major demographic and economic indicators (population, GDP etc etc). Tabular data is generally provided in machine-readable formats such as Excel (an open format such as CSV would be preferable but we still consider this acceptable). The data is also available "in bulk" in the sense that ther e are complete files plus data is available via automated access on an FTP site at http://www2.census.gov/ (where CSV files are often available). One point to note is that there are other sources of such data within the US government including the Bureau of Economic Analysis (http://bea.gov), the Bureau of Labor Statistics (http://bls.gov/) etc.